Author Topic: How many ips can i ban in iptables?  (Read 3730 times)

0 Members and 1 Guest are viewing this topic.

Offline postcd

  • Jr. Member
  • **
  • Posts: 37
  • Karma: 0
  • Gender: Male
  • just curious
    • View Profile
    • Awards
How many ips can i ban in iptables?
« on: May 04, 2014, 12:23:06 am »
Hello,

i read in config server firewall something like that many ips blocked in iptables a flood of ips can cause dos by iptables, meaning some overload or something. im not sure if its true. But i want to ask how i can see how much ips blocked in iptables is too much? where can i check it. Is there any hard limit or how to determine acceptable number keeping in ming that i have 6x2.2Ghz cpu and 8gb ram + basic 7k rpm disk?
no general writing in my threads please, only helpfull ontopic please

Offline Mark Greaves (PCNetSpec)

  • Administrator
  • Hero Member
  • *****
  • Posts: 18237
  • Karma: 476
  • Gender: Male
  • "-rw-rw-rw-" .. The Number Of The Beast
    • View Profile
    • PCNetSpec
    • Awards
Re: How many ips can i ban in iptables?
« Reply #1 on: May 04, 2014, 05:47:51 pm »
Something tells me IPTABLES can check IP's faster than connections can be made (in other words I'd be pretty sure the front side bus and CPU would be quicker than the network adapter) .. I'd expect it to be doing a lot of waiting around.

This just doesn't "ring true" to me.

Plus, I'd expect it to be all over the web if it were true.
WARNING: You are logged into reality as 'root'
logging in as 'insane' is the only safe option.
pcnetspec.co.uk

 


SimplePortal 2.3.3 © 2008-2010, SimplePortal